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//chapter18
//example18.4
//page401
L=33d-3 // H
C=0.1d-6 // F
R=25 // ohm
fr=1/(2*%pi*(L*C)^0.5)
Xl=2*%pi*fr*L
Q=Xl/R
BW=fr/Q
printf("resonant frequency = %.3f Hz or %.3f kHz \n",fr,fr/1000)
printf("quality factor = %.3f \n",Q)
printf("bandwidth = %.3f Hz \n",BW)
// the accurate answer for bandwidth is 120.572 Hz but in book it is given as 120 Hz
// the accurate answer for quality factor is 22.978 but in book it is given as 23
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